1.WIFI APP control, "CLEANING" is in control. 2.EPSON gyro navigation, and EPSON chip,brings smart life experiences 3. Anti-drop,anti-fall, with 13 sensors, 4.Imported brushless motor,strong suction,small noise 5.4 cleaning modes,Zigzag plan,90-95% coverage. 6.Auto recharge when low battery, 7.2500mAh Li-battery, up to 90 mins runtime. 8.Time schedule, can clean even when you are at work. 9.150ml big water tank,efficient wet mopping.